Radiator



Aug. 7,- 1934. 'A. R. MOLLER 1,969,315

` RADIATOR Filed Feb. 8, 1933 Patented Aug. 7, 1934 UNITED STATES v,lwi'rsliT OFFICE RADIATOR Anton R. Moller, Lexington, Mass. Application February 8, 1933, Serial o."655,7413

4 Claims.

My invention relates to improvements in radiators for heating systems and the like and it has for its primary object to improve the construction and operation thereof.

A heating system or the like of the class n which my invention is used comprises a plurality of radiators, or equivalent devices, each of which is provided with an inlet connected by a supply conduit with the outlet of a heater or the like, and also with an outlet fconnected by a return conduit with the inlet of the heater or the like.

.A fluid heat-conveying agent such as Water or steam is circulated `through the system either by gravity or by pressure and an objectionable feature characterizing such systems, as commonly constructed, has been that When the system included a plurality of radiators located at different distances fromV the heater, said radiators, or some of them,-would not each receive its proportionate supply of Asaid agent.

In the case of a steam heating system Where the heating agent was circulated by pressure each radiator of the system would be supplied with steam at a rate that was inverselyproportional to its distance from the heater. That is, the radiator nearest the heater'would be served with more steam'than the radiator that Was farthest from the heater. This was due to the fall in pressure and velocity of the steam as it progressed through the supply pipes leading from the heater, and to friction within said supply: pipes.

In the case of a hot Water gravity system the radiators would each be supplied with the heatconveying agent at a rate thatwas in direct proportion to the distance thereof from ,the heater. This was particularly the case Where the radiators Were disposed at differentelevations.

Of course it is common practice to provide a shut-01T valve in each supply conduitV closely adjacent to its radiator but such valves are continually being manipulated, each independ- 'ently of the others, so'that there never exists a predetermined and xed relationship between the respective effective capacities of the several supply conduits of the system with the result that the rate of Y delivery to thediffere'nt radiators can never beV the same'or approximately so, particularly yWhen operating at full capacity. f My invention has for one oiv its Vobjects' to obviate this objectionable characteristic andl one of its features consists in providing adjustable throttling means vin the inlet conduitof each radiator, saidthrottling means being set and xed in an adjusted condition which gives to said inlet conduit a definite permanent maximum capacity that is inversely proportional to the pressure under which the fluid heat conveying agent is delivered to said radiator. It is an advantage to myinvention that the adjustable throttling means inthe inlet conduit `of each .radiator can be Vset and permanently xed in its adjusted condition either before or after the radiator is incorporated in the system so as to give to said inlet conduit a maximum capacity which is either directly or inversely proportional to, and determined by, the distance of its radiator from Vthe heater, and so that when all of the radiators are operating at full capacity the heat-transmitting agent is equally distributed to theseveral radiators, or approximately so.

Other features and advantages of my invention are hereinafter pointed out. Y

In the accompanying drawings:

Figure l is a diagrammatic view illustrating a steam heating system provided with radiators constructed in accordance with my invention.

Figure 2 is a sectional detail of a portion o one of the radiatorsshown in Figure Figure 3 is an elevationofa portion of one end of the radiator showing the inlet of the latter. f

Figure 4 is an end vieW of theI nipple hereinafter described.

The steam heating system illustrated inFig. lv comprises three radiators 10a, 10b and 10c, each of which is provided with an inlet port 1,1, Fig. 2-connected bya branch supply conduit 12 andfriser 13 with the outlet 14 of aboiler 15, The' outlets of the radiators are connected by branch conduits 16 and a common return conduit l'l'with the inlet 18 of the boiler 15. In each branch supply conduit 12vis provided the usual shut-off valve 19. Y

Each radiator also includes as a part thereof `a nipple 20 having. one end thereof disposed within a chamber.21 formed in the end section .of the radiator at the outer end of the inlet port 11 thereof as shown in Fig. 2. Chamber 21 is formed at its inner end With -a conical seat 22 whilethe inner AendA of the nipple 20 is formed exteriorly as a-complementary cone frustum 23 which is tightly'clamped against said seat by a sleeve nut 24 loosely mounted on nipple 20 and arranged with its inner end in abutting engagement with an annular radial flange or shoulder,y 25 `provided on nipple 20. The side wall ofl chamber 21 is threaded as at I29 to engage the exteriorly threadednut 24. f

The nipple 20 is tubular and-it is interiorly threadedfat its outer end tol receive one end of an ordinary pipe nipple 2'7 :by which itis connected with the outletvportY of theshut-off valve 19 of its radiator. At its inner end nipple 20 is made With an outlet port 26 that is eccentrically disposed with respect to the axis of said nipple, while the inlet port 11 of the end radiator section is also eccentrically disposed with respect to the axis of nipple 20 Inorder torinsure proper engagement of th conical portion 23 of the inner `end of nipple 20 with the conical seat 22 on the radiator sec-4 tion, the contacting portion of said conical innei' end of the nipple is made less in length than the depth of the conical portion of the chamber2l with the result that the ilat inner end of the nipple is spaced away from the :bottom of chamber 21 so as to provide a clearance passage 28, as shown in Fig. 2, which is never closed.

Since the ports 26 and 11 are both eccentrical-Y 'ple has been permanently set to accord with said Ydelivery pressure the nut 24 is set up tight thus making the joint' between the conical innerV end of the lnipple and its seat steam tight and leakproof. y

Since the radiators of the system are disposed at different distances from the boiler or heater 15 the delivery-pressure at Aeach will be different from that at the others, but by proper- -ly setting the nipples v2() of Athe' system -a uniormy rate of delivery may be established 'throughout the latter.

In orderto facilitatethe setting of the'nipples 20 of the system the outer end portion of the nipple that is exposed to viewlmay `be marked with an index, or with a circumferential series of indices, to (zo-'operate with a fixed index mark provided upon a proximate portion of the exterior -of YVthe radiator section.

It is a feature of the above described construction that when the nut 24 is setup tight the inner end surface of nipple 20 which surrounds the port 26 is held out of' abutting engagementV with the bottom of the conical inner end portion vof the chamber 21 so that the ports 11 andV 26 are always in communication, and in practice I so construct the partsV that when the nipple is set for minimum capacity the latter' is about five percent of the maximum.

VIt is also a feature of the invention in its best form that a single port 11 and a single complementary port 26 are provided since said ports may then be made semi-circular, as viewed endwise, thereby securing afgreater range ofcapacity variation than would be possible with a plurality of ports 11 and a'plurality of-ports 26.

Also, a single pair of portsll and 26 is advantageous Vand 'desirable inorder to provide for coarse and therefore accurate throttling adjustment of the nipple 20 since Vthe greater the number of pairs of ports theA more minute or iner will be the adjustment for a given variation. 'Ihe construction'illustrated provides for anadjustment of the nipple 20 one hundred and eightly Y degrees to vary the capacity from maximum to minimum. a y

It is aieature of advantage to the above described construction tha't the shut-off valve 19 isdisposed inthe branch conduit 12 between the nipple 20 and the source of supply, andthe position or condition of said valve 19 is not disturbed while making adjustment of said nipple. *Iherefore,*while making such adjustment the valve 19 mayl remain closed so that escape of the heat-conveyingfluid is impossible while the nipple is being adjusted.

What I claim is:

v1. A radiator ofthe character described having an inlet provided, with an adjustable throttler union of Variable capacity whereof one end part is integral with said radiator and comprising' an opposite end part consisting of a nipple unit having endwise -abutting engagement with said radiator and rotatively adjustable relatively to the latter v'thereby to "vary the capacity -of said union between 'a' predetermined minimum limit and a predetermined .maximum limit, each of said end parts being lmade with an eccentrically disposed port f.1o-operatively associated with the eccentrioally disposed port of the other part, and means forxng said nipple in its adjusted position consisting 'of a threaded 'sleeve surroundinglsaid nipple unit and abutting 4an annular radial shoulder provided upon the latter, the saidV sleeve'. havingY threaded engagement with said radiator.

2. A radiator lconstructed in `accordance with claim 1, wherein the said nipple and radiator are made -with complementary abutting conical surfaces which are held in Contact by s'ai'dthrea'ded sleeve. f

3. A radiator of the character described havingr an inlet formed adjacent to its outer -end' with a relativelylarge circular threaded chamber Vand at its inner Vend with a relatively small ec'centri-cally disposed outlet port; a ro'tat'ively adjust-- able' nipple unit extending intov Ysaid chamber and formedzadjacent toy itsinner end with av conical surface to seat against the'bottom of said chamber and alsowith an `annular shoulder, said nipplel unit 'having its outer end portion-'constructed fory attachment to one end ofV a =conduit and being constructed at its inner 'end withl an eccentrically disposed outlet po'rt co-operatively associated with 'the eecentricaliy disposed outlet port of said inleuand an exteriorly threaded sleeve of said union between a predetermined minimum limit and 'a predetermined maximum limit, each of said end parts being made with an eccentrically disposedport (zo-operatively associated with the eccentrically disposed port lof ythe other part, Vand means for xing said nipple in its adjustedposition consisting of a sleeve loosely surrounding said nipple unitand abutting a radial kshoulderprovided upon theV latter, and meansjto force andV hold said'sleeve Aagainst' said shoulder, y ATON R. MOLLER. 

